WO2019080211A1 - Circuit de compensation de pilotage et appareil de pilotage de données - Google Patents

Circuit de compensation de pilotage et appareil de pilotage de données

Info

Publication number
WO2019080211A1
WO2019080211A1 PCT/CN2017/111259 CN2017111259W WO2019080211A1 WO 2019080211 A1 WO2019080211 A1 WO 2019080211A1 CN 2017111259 W CN2017111259 W CN 2017111259W WO 2019080211 A1 WO2019080211 A1 WO 2019080211A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
signal
compensation
temporary storage
storage unit
Prior art date
Application number
PCT/CN2017/111259
Other languages
English (en)
Chinese (zh)
Inventor
王振岭
黄泰钧
Original Assignee
深圳市华星光电半导体显示技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市华星光电半导体显示技术有限公司 filed Critical 深圳市华星光电半导体显示技术有限公司
Priority to KR1020207014543A priority Critical patent/KR102365389B1/ko
Priority to EP17929435.0A priority patent/EP3703043A4/fr
Priority to US15/576,863 priority patent/US10242631B1/en
Priority to JP2020511500A priority patent/JP2020531915A/ja
Publication of WO2019080211A1 publication Critical patent/WO2019080211A1/fr

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3275—Details of drivers for data electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0289—Details of voltage level shifters arranged for use in a driving circuit

Definitions

  • the present invention relates to the field of liquid crystal display, and in particular to a driving compensation circuit and a data driving device.
  • FIG. 1 shows a data driving circuit in the prior art.
  • the data driving voltage is supplied to the data line, in order to realize the compensation of the Vth of the transistor T1, it is necessary to provide the transistor T1 with two different data voltages.
  • Some data drive chip MINI The frequency of the LVDS is balanced.
  • the present invention provides a driving compensation circuit, including: a first temporary storage unit, a second temporary storage unit, a gating unit, an electric displacement converter, a digital-to-analog conversion unit, and an amplifying unit;
  • the first temporary storage unit and the second temporary storage unit are respectively connected to the gating unit, and the gating unit, the electric displacement converter, the digital-to-analog conversion unit and the amplifying unit are sequentially connected ;
  • the first temporary storage unit is configured to acquire and store a first compensation signal
  • the second temporary storage unit is configured to acquire and store a second compensation signal
  • the gating unit is configured to selectively connect the first temporary storage unit or the second temporary storage unit to the electric displacement converter, and the potential transfer device will use the first compensation signal or
  • the second compensation signal is processed and sent to the digital-to-analog conversion unit, and the digital-to-analog conversion unit converts into a corresponding analog signal according to the first compensation signal or the second compensation signal, and the amplifying unit
  • the analog signal is amplified by a preset multiple and sent to the data driving circuit for compensation; the amplifying unit is an analog buffer amplifier, and the gating unit is a strobe switch chip.
  • the first temporary storage unit includes a first receiver, a first shift register, and a first data register, the first receiver, the first shift register, and the first The data registers are connected in sequence.
  • the second temporary storage unit includes a second receiver, a second shift register, and a second data register, the second receiver, the second shift register, and the second The data registers are connected in sequence.
  • the first receiver and the second receiver are both Mini-LVDS receivers.
  • a frame memory is further included, and the frame memory stores the first compensation signal or the second compensation signal.
  • the first data register has a first control port for accessing the first control signal STB1; and the second data register has a second control port for receiving Into the second control signal STB2; the gating unit has a third control port for accessing the third control signal DS;
  • the first compensation signal in the first data register is passed through the electric displacement converter and digital-to-analog conversion
  • the unit and the amplifying unit process and transmit to the data line;
  • the second control signal STB2 When the second control signal STB2 is at a rising edge, storing the second compensation signal in the second data register, when the third control signal DS is at a low level and the second control When the signal STB2 is a falling edge, the second compensation signal is transmitted to the data line.
  • the present invention also provides a driving compensation circuit, comprising: a first temporary storage unit, a second temporary storage unit, a gating unit, an electric displacement converter, a digital-to-analog conversion unit, and an amplifying unit;
  • the first temporary storage unit and the second temporary storage unit are respectively connected to the gating unit, and the gating unit, the electric displacement converter, the digital-to-analog conversion unit and the amplifying unit are sequentially connected ;
  • the first temporary storage unit is configured to acquire and store a first compensation signal
  • the second temporary storage unit is configured to acquire and store a second compensation signal
  • the gating unit is configured to selectively connect the first temporary storage unit or the second temporary storage unit to the electric displacement converter, and the potential transfer device will use the first compensation signal or
  • the second compensation signal is processed and sent to the digital-to-analog conversion unit, and the digital-to-analog conversion unit converts into a corresponding analog signal according to the first compensation signal or the second compensation signal, and the amplifying unit
  • the analog signal is amplified by a preset multiple and sent to the data drive circuit for compensation.
  • the first temporary storage unit includes a first receiver, a first shift register, and a first data register, the first receiver, the first shift register, and the first The data registers are connected in sequence.
  • the second temporary storage unit includes a second receiver, a second shift register, and a second data register, the second receiver, the second shift register, and the second The data registers are connected in sequence.
  • the first receiver and the second receiver are both Mini-LVDS receivers.
  • a frame memory is further included, and the frame memory stores the first compensation signal or the second compensation signal.
  • the first data register has a first control port for accessing the first control signal STB1; and the second data register has a second control port for receiving Into the second control signal STB2; the gating unit has a third control port for accessing the third control signal DS;
  • the first compensation signal in the first data register is passed through the electric displacement converter and digital-to-analog conversion
  • the unit and the amplifying unit process and transmit to the data line;
  • the second control signal STB2 When the second control signal STB2 is at a rising edge, storing the second compensation signal in the second data register, when the third control signal DS is at a low level and the second control When the signal STB2 is a falling edge, the second compensation signal is transmitted to the data line.
  • An embodiment of the present invention further provides a data driving apparatus, including a data driving unit and a driving compensation circuit, wherein the data driving unit and the driving compensation circuit are both connected to a data line;
  • the driving compensation circuit includes: a first temporary storage unit, a second temporary storage unit, a gating unit, an electric displacement converter, a digital-to-analog conversion unit, and an amplifying unit;
  • the first temporary storage unit and the second temporary storage unit are respectively connected to the gating unit, and the gating unit, the electric displacement converter, the digital-to-analog conversion unit and the amplifying unit are sequentially connected ;
  • the first temporary storage unit is configured to acquire and store a first compensation signal
  • the second temporary storage unit is configured to acquire and store a second compensation signal
  • the gating unit is configured to selectively connect the first temporary storage unit or the second temporary storage unit to the electric displacement converter, and the potential transfer device will use the first compensation signal or
  • the second compensation signal is processed and sent to the digital-to-analog conversion unit, and the digital-to-analog conversion unit converts into a corresponding analog signal according to the first compensation signal or the second compensation signal, and the amplifying unit
  • the analog signal is amplified by a preset multiple and sent to the data drive circuit for compensation.
  • the first temporary storage unit includes a first receiver, a first shift register, and a first data register, the first receiver, the first shift register, and the first The data registers are connected in sequence.
  • the second temporary storage unit includes a second receiver, a second shift register, and a second data register, the second receiver, the second shift register, and the second The data registers are connected in sequence.
  • the first receiver and the second receiver are both Mini-LVDS receivers.
  • a frame memory is further included, and the frame memory stores the first compensation signal or the second compensation signal.
  • the first data register has a first control port for accessing the first control signal STB1; and the second data register has a second control port for receiving Into the second control signal STB2; the gating unit has a third control port for accessing the third control signal DS;
  • the first compensation signal in the first data register is passed through the electric displacement converter and digital-to-analog conversion
  • the unit and the amplifying unit process and transmit to the data line;
  • the second control signal STB2 When the second control signal STB2 is at a rising edge, storing the second compensation signal in the second data register, when the third control signal DS is at a low level and the second control When the signal STB2 is a falling edge, the second compensation signal is transmitted to the data line.
  • Embodiments of the present invention have the beneficial effect of effectively compensating the driving voltage of the data driving unit.
  • FIG. 1 is a schematic structural view of a data line driving circuit in the prior art.
  • FIG. 2 is a circuit schematic diagram of a drive compensation circuit in a preferred embodiment of the present invention.
  • FIG. 3 is a detailed circuit schematic diagram of a drive compensation circuit in a preferred embodiment of the present invention.
  • Figure 4 is a timing diagram of signals in an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a driving compensation circuit according to a preferred embodiment of the present invention.
  • the driving compensation circuit includes a first temporary storage unit 10, a second temporary storage unit 20, a gate unit 30, an electric displacement converter 40, a digital-to-analog conversion unit 50, and an amplification unit 60.
  • the first temporary storage unit 20 and the second temporary storage unit 30 are respectively connected to the gate unit 30, and the gate unit 30, the electric displacement converter 40, the digital-to-analog conversion unit 50, and the amplification unit 60 are sequentially connected.
  • the first temporary storage unit 10 is configured to acquire and store the first compensation signal.
  • the second temporary storage unit 20 is configured to acquire and store a second compensation signal.
  • the strobe unit 30 is configured to selectively connect the first temporary storage unit 10 or the second temporary storage unit 20 with the electric displacement converter 40, and the potential transfer unit 40 sets the first compensation signal or the second compensation.
  • the signal processing is sent to the digital-to-analog conversion unit 50, and the digital-to-analog conversion unit 50 converts the corresponding analog signal into a corresponding analog signal according to the first compensation signal or the second compensation signal, and the amplification unit 60 amplifies the analog signal by a preset multiple and sends it to the data driving circuit. Compensation, the data driving circuit outputs the compensated driving voltage signal to the data line.
  • the potential shifter 40 is configured to process the first compensation signal or the second compensation signal and send it to the digital-to-analog conversion unit 50. For example, if the voltage of the first compensation signal or the second compensation signal is 3.3V, the potential shifter further boosts 3.3V to a voltage of 5V required by the digital-to-analog conversion unit 50.
  • the amplifying unit 60 is an analog buffer amplifier to enhance the driving capability of the output.
  • the digital to analog conversion unit 50 is a conventional miniature digital to analog converter.
  • the gating unit 30 is a gating switch chip.
  • the first temporary storage unit 10 includes a first receiver 11, a first shift register 12, and a first data register 13, a first receiver 11, and a first shift register 12. And the first data register 13 is sequentially connected.
  • the second temporary storage unit 20 includes a second receiver 21, a second shift register 22, and a second data register 23, and the second receiver 21, the second shift register 22, and the second data register 23 are sequentially connected. .
  • the first receiver 11 and the second receiver 12 are both Mini-LVDS receivers.
  • the drive compensation circuit further includes a frame memory that stores the first compensation signal or the second compensation signal.
  • first data register 13 has a first control port for accessing the first control signal STB1;
  • second data register 23 has a second control port for accessing the second control signal STB2;
  • the pass unit 30 has a third control port for accessing the third control signal DS;
  • the first compensation signal in the frame memory is started to be read into the first shift register 12, and when the first control signal STB1 is at a rising edge, the first compensation is performed.
  • the signal is output to the first data register 13.
  • the first compensation signal in the first data register 13 is passed through the electric displacement converter 40, the digital-to-analog conversion unit 50, and the amplification.
  • Unit 60 processes and transmits to the data line.
  • the second compensation signal is stored in the second data register 23, when the third control signal DS is low level and the second control signal STB2 is falling edge, The second compensation signal is transmitted to the data line.
  • the first control signal STB1, the second control signal STB2, and the third control signal DS are square wave signals, and the timing relationship thereof is as shown in FIG.
  • the embodiment of the invention further provides a data driving device, comprising a data driving unit and a driving compensation circuit, wherein the data driving unit is electrically connected to the driving compensation circuit, and the data driving unit is connected to the data line.
  • the drive compensation circuit is the drive compensation circuit in the above embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Amplifiers (AREA)
  • Liquid Crystal (AREA)
  • Control Of El Displays (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Dc Digital Transmission (AREA)

Abstract

La présente invention concerne un circuit de compensation de pilotage, comprenant : une première unité de stockage temporaire, une seconde unité de stockage temporaire, une unité de portillonnage, un convertisseur de déplacement électrique, une unité de conversion numérique-analogique et une unité d'amplification. La première unité de stockage temporaire et la seconde unité de stockage temporaire sont respectivement connectées à l'unité de portillonnage; l'unité de portillonnage, le convertisseur de déplacement électrique, l'unité de conversion numérique-analogique et l'unité d'amplification sont connectés en séquence.
PCT/CN2017/111259 2017-10-25 2017-11-16 Circuit de compensation de pilotage et appareil de pilotage de données WO2019080211A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020207014543A KR102365389B1 (ko) 2017-10-25 2017-11-16 구동 보상 회로 및 데이터 구동 장치
EP17929435.0A EP3703043A4 (fr) 2017-10-25 2017-11-16 Circuit de compensation de pilotage et appareil de pilotage de données
US15/576,863 US10242631B1 (en) 2017-11-16 2017-11-16 Drive compensation circuit and data drive device
JP2020511500A JP2020531915A (ja) 2017-10-25 2017-11-16 駆動補償回路及びデータ駆動装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711009010.1A CN107845359A (zh) 2017-10-25 2017-10-25 驱动补偿电路及数据驱动装置
CN201711009010.1 2017-10-25

Publications (1)

Publication Number Publication Date
WO2019080211A1 true WO2019080211A1 (fr) 2019-05-02

Family

ID=61663139

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/111259 WO2019080211A1 (fr) 2017-10-25 2017-11-16 Circuit de compensation de pilotage et appareil de pilotage de données

Country Status (5)

Country Link
EP (1) EP3703043A4 (fr)
JP (1) JP2020531915A (fr)
KR (1) KR102365389B1 (fr)
CN (1) CN107845359A (fr)
WO (1) WO2019080211A1 (fr)

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CN104809993A (zh) * 2015-04-15 2015-07-29 深圳市华星光电技术有限公司 源极驱动器及液晶显示器
CN106531084A (zh) * 2017-01-05 2017-03-22 上海天马有机发光显示技术有限公司 有机发光显示面板及其驱动方法、有机发光显示装置
CN106847175A (zh) * 2017-03-01 2017-06-13 京东方科技集团股份有限公司 电致发光显示屏及其亮度均匀性补偿方法、系统
CN107086023A (zh) * 2017-05-04 2017-08-22 合肥鑫晟光电科技有限公司 像素驱动补偿电路及其驱动补偿方法、显示装置

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JP2008298997A (ja) * 2007-05-30 2008-12-11 Toshiba Matsushita Display Technology Co Ltd 表示装置及び表示装置の駆動方法
KR101289652B1 (ko) * 2010-12-10 2013-07-25 엘지디스플레이 주식회사 액정표시장치
CN105144274B (zh) * 2013-04-23 2017-07-11 夏普株式会社 显示装置及其驱动电流检测方法
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CN104809993A (zh) * 2015-04-15 2015-07-29 深圳市华星光电技术有限公司 源极驱动器及液晶显示器
CN106531084A (zh) * 2017-01-05 2017-03-22 上海天马有机发光显示技术有限公司 有机发光显示面板及其驱动方法、有机发光显示装置
CN106847175A (zh) * 2017-03-01 2017-06-13 京东方科技集团股份有限公司 电致发光显示屏及其亮度均匀性补偿方法、系统
CN107086023A (zh) * 2017-05-04 2017-08-22 合肥鑫晟光电科技有限公司 像素驱动补偿电路及其驱动补偿方法、显示装置

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Title
See also references of EP3703043A4 *

Also Published As

Publication number Publication date
KR102365389B1 (ko) 2022-02-18
JP2020531915A (ja) 2020-11-05
EP3703043A4 (fr) 2021-07-28
EP3703043A1 (fr) 2020-09-02
KR20200063245A (ko) 2020-06-04
CN107845359A (zh) 2018-03-27

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